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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
26/10/2004 |
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Data da última atualização: |
27/10/2004 |
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Autoria: |
COSTA, R. B. da; RESENDE, M. D. V. de; GONÇALVES, P. de S.; ARRUDA, E. J. de; OLIVEIRA, L. C. S. de; BORTOLETTO, N. |
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Título: |
Prediction of genotypic values for yield in rubber tree-clone test trials using REML/BLUP procedure. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 4, p. 579-586, Dec. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
The present study was carried out to estimate variance components, prediction of genotypic values and repeatability for yield trait in rubber tree clones [Hevea brasilienses (Willd. Adr. ex Juss.) Muell. -Arg.], through the procedure REML/BLUP. In the study were utilized twenty clones established in the Experimental Station of Votuporanga, São Paulo, Brazil, in the randomized block design with three replications. Each plot was represented by six trees, planted in the spacing of 7.0 m between lines and 3.0 m among plants. Data of yield of dry rubber were obtained when the trees reached a girth of 45.0cm at 1.20m above the bud union. The tapping system used was 1/2S d/4 6d/7.ET 2.5%. The results showed, a high genetic variability among clones, which can inferred on the estimates of the genotypic variation among clones (o2g=92.79) and broad sense heritabilities based on mean annual tapping yield (h2b1= 0.82) and of mean of five annual tapping yield (h2b5= 0.89). The broad sense individual heritability (h2bi= 0.22), showed the presence of dominance for the trait and heterose should be explored with larger emphasis in the studied population. The clones IAC 301, IAC 56 and IAN 3156 presented superior genotypic values when compared to the average of the population. Based on the values of the repeatability coeffieicnet and the found efficiency results it is supposed that there is no advange in more than three annual tapping considering the necessary time for the selection and the obtained additional progress. MenosThe present study was carried out to estimate variance components, prediction of genotypic values and repeatability for yield trait in rubber tree clones [Hevea brasilienses (Willd. Adr. ex Juss.) Muell. -Arg.], through the procedure REML/BLUP. In the study were utilized twenty clones established in the Experimental Station of Votuporanga, São Paulo, Brazil, in the randomized block design with three replications. Each plot was represented by six trees, planted in the spacing of 7.0 m between lines and 3.0 m among plants. Data of yield of dry rubber were obtained when the trees reached a girth of 45.0cm at 1.20m above the bud union. The tapping system used was 1/2S d/4 6d/7.ET 2.5%. The results showed, a high genetic variability among clones, which can inferred on the estimates of the genotypic variation among clones (o2g=92.79) and broad sense heritabilities based on mean annual tapping yield (h2b1= 0.82) and of mean of five annual tapping yield (h2b5= 0.89). The broad sense individual heritability (h2bi= 0.22), showed the presence of dominance for the trait and heterose should be explored with larger emphasis in the studied population. The clones IAC 301, IAC 56 and IAN 3156 presented superior genotypic values when compared to the average of the population. Based on the values of the repeatability coeffieicnet and the found efficiency results it is supposed that there is no advange in more than three annual tapping considering the necessary time for the selection and the ... Mostrar Tudo |
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Palavras-Chave: |
Components of variance; Hevea brasilienses. |
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Thesagro: |
Borracha; Seringueira. |
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Thesaurus Nal: |
repeatability; variability. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02301naa a2200253 a 4500
001 1212627
005 2004-10-27
008 2002 bl uuuu u00u1 u #d
100 1 $aCOSTA, R. B. da
245 $aPrediction of genotypic values for yield in rubber tree-clone test trials using REML/BLUP procedure.
260 $c2002
520 $aThe present study was carried out to estimate variance components, prediction of genotypic values and repeatability for yield trait in rubber tree clones [Hevea brasilienses (Willd. Adr. ex Juss.) Muell. -Arg.], through the procedure REML/BLUP. In the study were utilized twenty clones established in the Experimental Station of Votuporanga, São Paulo, Brazil, in the randomized block design with three replications. Each plot was represented by six trees, planted in the spacing of 7.0 m between lines and 3.0 m among plants. Data of yield of dry rubber were obtained when the trees reached a girth of 45.0cm at 1.20m above the bud union. The tapping system used was 1/2S d/4 6d/7.ET 2.5%. The results showed, a high genetic variability among clones, which can inferred on the estimates of the genotypic variation among clones (o2g=92.79) and broad sense heritabilities based on mean annual tapping yield (h2b1= 0.82) and of mean of five annual tapping yield (h2b5= 0.89). The broad sense individual heritability (h2bi= 0.22), showed the presence of dominance for the trait and heterose should be explored with larger emphasis in the studied population. The clones IAC 301, IAC 56 and IAN 3156 presented superior genotypic values when compared to the average of the population. Based on the values of the repeatability coeffieicnet and the found efficiency results it is supposed that there is no advange in more than three annual tapping considering the necessary time for the selection and the obtained additional progress.
650 $arepeatability
650 $avariability
650 $aBorracha
650 $aSeringueira
653 $aComponents of variance
653 $aHevea brasilienses
700 1 $aRESENDE, M. D. V. de
700 1 $aGONÇALVES, P. de S.
700 1 $aARRUDA, E. J. de
700 1 $aOLIVEIRA, L. C. S. de
700 1 $aBORTOLETTO, N.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 4, p. 579-586, Dec. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
23/03/2004 |
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Data da última atualização: |
11/11/2015 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
FREIRE, F. M. |
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Afiliação: |
Embrapa Milho e Sorgo. |
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Título: |
Interpretação de resultados de análise de solo. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Sete Lagoas: Embrapa Milho e Sorgo, 2003. |
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Páginas: |
4p. |
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Série: |
(Embrapa Milho e Sorgo. Comunicado técnico, 82). |
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Idioma: |
Português |
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Thesagro: |
Solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPMS/16191/1/Com_82.pdf
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Marc: |
LEADER 00406nam a2200133 a 4500
001 1487554
005 2015-11-11
008 2003 bl uuuu u0uu1 u #d
100 1 $aFREIRE, F. M.
245 $aInterpretação de resultados de análise de solo.$h[electronic resource]
260 $aSete Lagoas: Embrapa Milho e Sorgo$c2003
300 $a4p.
490 $a(Embrapa Milho e Sorgo. Comunicado técnico, 82).
650 $aSolo
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Embrapa Milho e Sorgo (CNPMS) |
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